diff --git a/Cargo.lock b/Cargo.lock
index 289136ca88..fad866a3ee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -241,7 +241,7 @@ dependencies = [
 
 [[package]]
 name = "azure_core_macros"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -254,7 +254,7 @@ dependencies = [
 
 [[package]]
 name = "azure_core_opentelemetry"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "azure_core",
  "azure_core_test",
diff --git a/Cargo.toml b/Cargo.toml
index 270868cf15..dfc26dd894 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -57,7 +57,7 @@ version = "0.29.0"
 path = "sdk/core/azure_core"
 
 [workspace.dependencies.azure_core_macros]
-version = "0.3.0"
+version = "0.4.0"
 path = "sdk/core/azure_core_macros"
 
 [workspace.dependencies.azure_core_amqp]
diff --git a/sdk/core/azure_core_macros/CHANGELOG.md b/sdk/core/azure_core_macros/CHANGELOG.md
index 0796809bdf..7f8838ddf1 100644
--- a/sdk/core/azure_core_macros/CHANGELOG.md
+++ b/sdk/core/azure_core_macros/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Release History
 
+## 0.4.0 (Unreleased)
+
+### Features Added
+
+### Breaking Changes
+
+### Bugs Fixed
+
+### Other Changes
+
 ## 0.3.0 (2025-10-03)
 
 ### Other Changes
diff --git a/sdk/core/azure_core_macros/Cargo.toml b/sdk/core/azure_core_macros/Cargo.toml
index a964ad2cc5..69db30667e 100644
--- a/sdk/core/azure_core_macros/Cargo.toml
+++ b/sdk/core/azure_core_macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "azure_core_macros"
-version = "0.3.0"
+version = "0.4.0"
 description = "Procedural macros for client libraries built on azure_core."
 readme = "README.md"
 authors.workspace = true
diff --git a/sdk/core/azure_core_opentelemetry/CHANGELOG.md b/sdk/core/azure_core_opentelemetry/CHANGELOG.md
index 0796809bdf..7f8838ddf1 100644
--- a/sdk/core/azure_core_opentelemetry/CHANGELOG.md
+++ b/sdk/core/azure_core_opentelemetry/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Release History
 
+## 0.4.0 (Unreleased)
+
+### Features Added
+
+### Breaking Changes
+
+### Bugs Fixed
+
+### Other Changes
+
 ## 0.3.0 (2025-10-03)
 
 ### Other Changes
diff --git a/sdk/core/azure_core_opentelemetry/Cargo.toml b/sdk/core/azure_core_opentelemetry/Cargo.toml
index 3489ea6866..afd755ce39 100644
--- a/sdk/core/azure_core_opentelemetry/Cargo.toml
+++ b/sdk/core/azure_core_opentelemetry/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "azure_core_opentelemetry"
-version = "0.3.0"
+version = "0.4.0"
 description = "OpenTelemetry integration for the Azure SDK for Rust"
 readme = "README.md"
 authors.workspace = true